diff --git a/mlir/lib/Dialect/Vector/IR/VectorOps.cpp b/mlir/lib/Dialect/Vector/IR/VectorOps.cpp
--- a/mlir/lib/Dialect/Vector/IR/VectorOps.cpp
+++ b/mlir/lib/Dialect/Vector/IR/VectorOps.cpp
@@ -4588,6 +4588,13 @@
     return emitOpError("incompatible input/initial value shapes");
   }
 
+  // Verify supported reduction kind.
+  Type eltType = getDestType().getElementType();
+  if (!isSupportedCombiningKind(getKind(), eltType))
+    return emitOpError("unsupported reduction type ")
+           << eltType << " for kind '" << stringifyCombiningKind(getKind())
+           << "'";
+
   return success();
 }
 
diff --git a/mlir/test/Dialect/Vector/invalid.mlir b/mlir/test/Dialect/Vector/invalid.mlir
--- a/mlir/test/Dialect/Vector/invalid.mlir
+++ b/mlir/test/Dialect/Vector/invalid.mlir
@@ -1523,6 +1523,15 @@
 
 // -----
 
+func @scan_unsupported_kind(%arg0: vector<2x3xf32>, %arg1: vector<3xf32>) -> vector<2x3xf32> {
+  // expected-error@+1 {{'vector.scan' op unsupported reduction type 'f32' for kind 'xor'}}
+  %0:2 = vector.scan <xor>, %arg0, %arg1 {inclusive = true, reduction_dim = 0} :
+    vector<2x3xf32>, vector<3xf32>
+  return %0#0 : vector<2x3xf32>
+}
+
+// -----
+
 func @invalid_splat(%v : f32) {
   // expected-error@+1 {{invalid kind of type specified}}
   vector.splat %v : memref<8xf32>